Cozy is the softest musk ox in Alaska, with the warmest fur you ever did feel. When a storm hits while he's separated from his family, he starts to feel lonely—but not for long.

As the snow piles up, animals start to notice just how warm and cozy Cozy really is! One mama lemming has a bright idea . . . maybe the best place to spend the winter is under Cozy's fur! As more and more animals burrow in, Cozy adds to the house rules: quiet voices, gentle thumping, claws to yourself, no biting, and no pouncing. That seems easy enough . . . until the lemmings, snowshoe hare, snowy owl, arctic fox, and wolverine begin to bicker.

Luckily, signs of spring soon appear, and that means Cozy can find his herd and his new friends can head to their summer homes.